... Alloy folding frame&f steel fork 7speed shimano derailleur 20" 27 speed alloy folding (WL-2049A) 20" suspension folding bicycle, ... The company have passed ISO9001: 2000 international quality authentication 20" 27 speed alloy folding MTB(WL-2049A) Specifications: 1) Bicycle Frame ... : 20" x 1.95" A/V 10) Bicycle Derailleur:27 speed Shimano derailleur Our supplier products: Folding, folding bikes, folding ...